Fujitsu F2MC-16LX MB90580 Series Hardware Manual page 200

13.5 Operation
(3) IEBus initial setup
The initial setup sequence includes setting its unit address, the command register and releasing the
communication inhibit state. If the unit is not set as master, there is no need to set the slave address in slave
address register. In converse, if the unit is set as master, there is no need to set the mutiaddress byte and
control byte.
Set unit address (MAWH, MAWL)
Set as master
Set slave address (SAWH, SAWL)
Set multiaddress and
control bits (DCWR)
Set command register (CMRH, CMRL)
Release communication
inhibit state
Data transmit
Enable transmit
Note:It can be executed by write operation of command register.
180 Chapter 13: IE Bus
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N
Y
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Y
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When the unit is set as master, the unit address
becomes master address. When the unit is set as
slave, the unit address is used to compared with that in
slave address field.
For example selecting the communication mode in
command register CMRH, CMRL
The bit PCOM in command register CMRH is set to '1'.
During slave receive, .GOTM and GOTS are not
Set GOTS bit to '1' when GOTM bit is '1'/
MB90580 Series